Blockchain-Based Cybersecurity Frameworks for Secure Government Communications

Abstract

Government communication systems form the backbone of national security, governance, and public service delivery. These systems are frequently targeted by cyber adversaries seeking to intercept, manipulate, or disrupt sensitive information flows. Traditional security mechanisms, while effective to a degree, struggle with issues of centralization, traceability, and resilience against insider or state-sponsored threats. Blockchain technology, with its distributed ledger, immutability, and consensus mechanisms, provides a compelling foundation for reimagining secure government communications. This paper explores blockchain-based cybersecurity frameworks tailored for government contexts, focusing on confidentiality, integrity, authenticity, and resilience. It outlines architectural approaches that integrate blockchain with secure messaging protocols, decentralized identity management, and smart contract-driven access control. Key challenges, including scalability, interoperability, latency, and governance, are analyzed in detail, alongside strategies for hybrid architectures that balance performance with security. The study demonstrates that blockchain-enabled communication networks can enhance trust, accountability, and auditability across inter-agency and cross-border operations, ultimately reinforcing sovereignty and national resilience.